Macromolecular antioxidants and polymeric macromolecular antioxidants
申请人:Cholli L. Ashok
公开号:US20070106059A1
公开(公告)日:2007-05-10
Disclosed are macromolecular antioxidants represented by a structural formula selected from I-VI:
and polymeric macromolecular antioxidants comprises at least one repeating unit represented by a structural formula selected from VIIa, VIIb, VIIIa, VIIIb or a combination thereof:
possessing superior oxidative resistance and higher thermal stability than commercially available antioxidants, and synthesis and applications of these macromolecular antioxidants and polymeric macromolecular antioxidants.
Stabilized polyolefin compositions
申请人:Kumar Vijayendra
公开号:US20070149660A1
公开(公告)日:2007-06-28
Disclosed are compositions comprising antioxidants and stabilizers, such as, acid scavengers or organic phosphorus stabilizers, and optionally further comprising co-stabilizers. The disclosed compositions are useful as stabilizers for polyolefins and other polymeric materials. The disclosed compositions and methods generally provide longer shelf lifes and better oxidative resistance to materials than currently available antioxidants.
Macromolecular antioxidants based on sterically hindered phenols and phosphites
申请人:Cholli L. Ashok
公开号:US20070135539A1
公开(公告)日:2007-06-14
Sterically hindered phenol and phosphite based compounds, represented by a formula selected from I-III:
and their use as antioxidants in a wide range of materials including, but not limited to, food, plastics, elastomers, composites and petroleum based products is disclosed herein.
Lubricant oil compositions
申请人:Cholli L. Ashok
公开号:US20070161522A1
公开(公告)日:2007-07-12
Compositions comprise first antioxidants and first additives, such as, a surface additives, performance enhancing additives and lubricant protective additives and optionally second additives and/or second antioxidants. The compositions are useful to improve lubricants, lubricant oils and other lubricant materials. The compositions and methods generally provide longer shelf lives, increased oxidative resistance, improved quality and/or enhanced performance to lubricants or lubricant oils.
STABILIZED POLYOLEFIN COMPOSITIONS
申请人:Kumar Vijayendra
公开号:US20100305251A1
公开(公告)日:2010-12-02
Disclosed are compositions comprising antioxidants and stabilizers, such as, acid scavengers or organic phosphorus stabilizers, and optionally further comprising co-stabilizers. The disclosed compositions are useful as stabilizers for polyolefins and other polymeric materials. The disclosed compositions and methods generally provide longer shelf lifes and better oxidative resistance to materials than currently available antioxidants.